The world-renowned urban art installation in Detroit's east side has met its fundraising goal for additional security.

Five houses in the Heidelberg Project were burned down in the last year - three remain.

The Project's effort to raise money for lighting, security cameras, and security patrols has exceeded its goal of $50,000. As of this writing, they've raised $51,330 in their online campaign.

There have been no arrests related to the fires dating back to May, but local and federal officials are investigating.

Tyree Guyton founded the project in 1986 as a response to urban decay in his neighborhood. The city initially attempted to stop the project by tearing buildings down, but once the area gained national and international attention, and attracted tourists, the city embraced the community art project.

The suspicious fire tore through the Clock House, near Elba Place and Ellery, about 10:50 p.m. Sunday, according to Battalion Chief Edward Voss. Smoke rolled through the neighborhood, blanketing it like fog. Fire crews arrived within five to seven minutes, but it wasn’t enough time to save the art display, said Voss.

It's the fifth house to be destroyed by arson in the last two months.

Heidelberg supporters wonder if the remaining three houses will be standing at the end of the year.

The three remaining houses, according to the News, are the Dot House, the Numbers House, and the Teddy Bear House.

The Bureau of Alcohol, Tobacco, Firearms and Explosives has offered a $5,000 reward for information leading to an arrest and conviction, and the agency is assisting the Detroit Fire Department in investigating the fires.

The News reports that police have not made specific plans to increase patrols in the Heidelberg area.

Heidelberg organizers have raised nearly $39,000 toward a goal of $50,000 to increase lighting and private patrols in the two-block area.

Michigan Radio's Emily Fox spoke with Guyton after the third house, the Penny House, was burned. Guyton told Fox the fires have inspired him to make more art:

Guyton began the Heidelberg Project in 1986 to call attention to the extreme blight in Detroit's neighborhoods. Anyone who has information about the fires is asked to call the arson unit at the Detroit Fire Department (313-596-2940), or the ATF at 888-ATF-FIRE.